AMRAVATI, India — Once a month Ujwala Karmejh pulls together her savings and splurges on a 60-rupee ($1.30), round-trip bus ticket. Wearing a sari and red bindi on her forehead, Ujwala takes the bus past the open fields growing cotton, soya beans and lentils; the baby goats grazing on the side of the road; the old men with deeply engraved wrinkles driving oxcarts; and the bright blue tents housing migrant workers who have traveled to central India to work in the fields. After 45 minutes, Ujwala reaches Shirasgaon village and her target: her 4-year-old daughter, Jagruti.